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Author Topic: Engine roar?  (Read 1677 times)

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Offline PitSnipe (Kyle)

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Engine roar?
« on: April 23, 2013, 09:41:39 AM »
Hey guys hoping someone can help me in the right direction.

When starting my X the rpms ramp up to 2000 then slowly drop to the normal area about 800 rpm. When it ramps up the engine roars. It just doesn't seem like its normal. I've driven newer X's and they do not do this. Is this normal? Any help is appreciated.

2007 Xterra
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Offline Jack5885

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Re: Engine roar?
« Reply #1 on: April 23, 2013, 09:45:31 AM »
pretty much all cars do that. Its normal.

Offline Rev

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Re: Engine roar?
« Reply #2 on: April 23, 2013, 09:57:59 AM »
Well here's the question, how long does it hold the higher RPM for? Is it just a brief second or does it seem to ramp up and stay there for more than a few seconds?

Also how is it on maintenance? You may want to check that it has a good air filter and that the fuel injectors are clean.

Offline PitSnipe (Kyle)

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Re: Engine roar?
« Reply #3 on: April 23, 2013, 10:02:07 AM »
It holds the RPMs for a little longer than it should. It runs great otherwise. When I put it in gear the RPMs drop immediately. Fuel injectors and air filter are clean.
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Offline Rev

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Re: Engine roar?
« Reply #4 on: April 23, 2013, 10:30:52 AM »
It hasn't been cold at all for a while... You might want to check the ECU for codes and see if maybe it's throwing anything unusual. The engine might be holding RPMs longer trying to blow something out... Heck it could even be 02 readings or something from the cats.

I know Autozone checks codes for free but I don't know if they catch anything on their little machine that doesn't trip the Check Engine light. The cats on my truck went out at about 135k miles or so and it was doing a few funky things before they got replaced. I only drove it once with the bad cats though so I don't remember how it started up very well.

Offline AZXterra410

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Re: Engine roar?
« Reply #5 on: April 23, 2013, 10:53:34 AM »
Xterra is notorious for its lion roar.

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Re: Engine roar?
« Reply #6 on: April 23, 2013, 02:38:04 PM »
Yup what Andrew said!

Offline Hammer (Avi)

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Re: Engine roar?
« Reply #7 on: April 23, 2013, 05:53:24 PM »
Mine gave a similar issue when I had an exhaust leak, or after my cold air install.  After the intake install I had to do an ECU reset and it took about a week or two to program itself.  Then the issue went away.  With the exhaust leak I also heard a definite growl from the drivers side, turns out the cat had cracked. 
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Offline AZ-Ted

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Re: Engine roar?
« Reply #8 on: April 23, 2013, 07:47:54 PM »
You can do the Idle Air Volume Relearn to correct this.  Personally, I would clean the MAF sensor and the throttle body, and then do the relearn.

Here is a link to the thread that documents the steps needed:

http://www.thenewx.org/forum/showthread.php?t=14334&highlight=relearn&page=8
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Offline PitSnipe (Kyle)

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Re: Engine roar?
« Reply #9 on: April 24, 2013, 08:14:16 AM »
Thank you all for the tips.
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